Next, you have to visually check what's installed and where it was installed. You can do a search from this folder for "m4" or "inj" and organize the results by date to show latest date first.

Can you make Windows File Explorer display all file extensions? That "hide extensions for known files" is on. Uncheck that option.

That Poser.exe assigned as a text document... What is that? You have to clear the .exe file association.

I kinda have to be somewhere by 10pm, but I'll be back tomorrow around noon.